Read the text. math sentences 1-5 with paragraphs a-d​

1. The gases that are produced by factories and cars are allowing more radiation from the sun to reach Earth. This is because these gases, such as carbon dioxide and methane, act as a greenhouse effect. They trap heat in the atmosphere and prevent it from escaping into space. As a result, the Earth's temperature increases.

2. The increased radiation from the sun leads to a rise in the Earth's temperature. This phenomenon is known as global warming. It is caused by the accumulation of greenhouse gases in the atmosphere, which trap heat and prevent it from escaping into space. This increase in temperature has serious consequences for humanity and the environment.

3. One of the consequences of global warming is the melting of the Arctic and Antarctic ice caps. These ice caps contain a significant amount of the Earth's freshwater. As they melt, the water flows into the oceans, causing the sea level to rise. The rise in sea level is a threat to coastal areas, as it can lead to flooding and the displacement of populations.

4. The rising sea level will have significant impacts on low-lying parts of the world. These areas are already prone to flooding, and the increased sea level will exacerbate this problem. Floods can cause damage to infrastructure, destroy homes, and even lead to loss of life. Furthermore, the displacement of populations due to flooding can create social and economic challenges.

5. In addition to the rise in sea level, global warming also has an impact on the climate. Climate refers to the long-term weather patterns in a particular region. As the Earth gets hotter, the climate will change in various ways. Some areas may become wetter, experiencing increased rainfall and humidity. Others may become drier, with less rainfall and more droughts. These climate changes can have significant implications for ecosystems, agriculture, and human settlements.

6. The changing climate and rising sea level can lead to the expansion of deserts. Deserts are arid areas with little vegetation and limited water sources. As the climate becomes drier, existing deserts may expand, and new desert areas may form. This can have negative consequences for biodiversity, as many plant and animal species are adapted to specific habitats.

7. Another consequence of global warming is the spread of tropical diseases. As temperatures rise, disease-carrying organisms, such as mosquitoes, can expand their range to regions where they were previously absent. This can lead to the spread of diseases like malaria in areas where they are currently uncommon. The impact of these diseases on human health and well-being can be significant.

In conclusion, the increase in temperature on Earth, caused by the accumulation of greenhouse gases, has numerous consequences for humanity and the environment. These include the melting of ice caps, the rise in sea level, changes in climate patterns, the expansion of deserts, and the spread of tropical diseases. It is crucial for individuals, communities, and governments to take action to mitigate the effects of global warming and work towards a more sustainable future.

1. I knew that she always wore a hat when she worked in the garden.

Данное предложение описывает прошедшую ситуацию, поэтому используется прошедшее время в Past Indefinite форме "wore" после "always". Так как "to wear" имеет правило окончания в прошедшем времени -ed, то регулярный глагол "to wear" становится "wore".


2. We supposed that he was waiting outside the office at that moment.

Здесь также описывается прошедшая ситуация, поэтому используется Past Indefinite форма глагола "to wait" - "was waiting". Здесь корневая форма глагола "to wait" не меняется.


3. She hoped her son didn't get flue that winter.

Предложение описывает действие в прошлом, поэтому используется Past Indefinite форма глагола "to get" - "didn't get". Так как "to get" не является регулярным глаголом, его форму в прошедшем времени можно записать без изменений.


4. He thought his wife had already booked the seats for the flight.

Здесь говорится о прошлом действии, которое произошло до другого прошлого действия. Используется Past Perfect форма глагола "to book" - "had already booked".


5. It was 12.30 and I was sure he was having lunch in the nearest café.

Прошедшее непрерывное время описывает действия, происходившие в определенный момент в прошлом. Используется Past Continious форма глагола "to have" - "was having".


6. We heard that he had gone into hospital for a routine operation the day before.

Здесь используется Past Perfect форма глагола "to go" - "had gone", так как действие "to go into hospital" произошло до "hearing".


7. The doctor was sure that the nurse always gave pills to the patients in time.

Это прошедшее действие согласуется с действием, которое всегда происходит. Следовательно, используется Past Indefinite форма глагола "to give" - "gave".


8. He was attacked when he was waiting for a bus.

Здесь также описывается прошедшая ситуация, поэтому используется Past Indefinite форма глагола "to wait" - "was waiting".


9. I knew my sister always had problems getting to sleep.

Здесь используется Past Indefinite форма глагола "to have" - "had", так как описывается прошедшая ситуация.


10. They didn’t believe that it was his fault.

Это утверждение относится к прошлому времени, поэтому используется Past Indefinite форма глагола "to be" - "was".